<template>
  <h2>当前求和{{ sum }}</h2>
  <button @click="sum++">求和加一</button>
  <hr />
  <h2>姓名：{{ name }}</h2>
  <h2>年龄：{{ age }}</h2>
  <h2>薪水：{{ job.j1.salary }}</h2>
  <h2 v-show="person.car">车车：{{ person.car }}</h2>
  <button @click="name += '!'">修改姓名</button>
  <button @click="age++">修改年龄</button>
  <button @click="job.j1.salary++">涨薪</button>
  <button @click="showRawPerson">输出最原始的person</button>
  <button @click="addCar">给人添加一个车</button>
</template>

<script>
import { reactive, ref, toRef, toRefs, toRaw, markRaw } from "vue";
export default {
  name: "Demo",
  setup() {
    let sum = ref(0);
    let person = reactive({
      name: "张三",
      age: 99,
      job: {
        j1: {
          salary: 18,
        },
      },
    });
    function showRawPerson() {
      const p = toRaw(person);
      console.log(p);
    }
    function addCar() {
      let car = {
        name: "奔驰",
        price: 40,
      };
      // 以后不再是响应式的了
      person.car = markRaw(car);
    }

    return {
      sum,
      person,
      ...toRefs(person),
      showRawPerson,
      addCar,
    };
  },
};
</script>

<style>
</style>
